通信ETF（515880）午后涨超1%，光模块景气度与上游供应链引关注

Group 1 - The optical module industry is experiencing a continuous increase in demand, with high visibility for next year's demand and ongoing upward revisions of order guidance, leading to a supply-demand imbalance becoming the norm in the industry [1] - Key upstream materials affecting the delivery capabilities of optical module manufacturers include EML optical chips, CW light sources, silicon optical chips, and passive optical devices, highlighting investment opportunities in these core upstream segments [1] - Silicon photonics technology is gaining significant advantages and is continuously capturing market share from EML, particularly excelling at 1.6T rates [1] Group 2 - Leading companies in the industry are actively expanding their production capacity, with Tower Semiconductor planning to increase its silicon photonics and silicon germanium business, targeting over $220 million in silicon photonics revenue by 2025 [1] - The optical module and optical chip businesses are transitioning from technological breakthroughs to a phase of scaling up, with future adaptations to market changes expected through deep collaboration and innovation [1] - The Communication ETF (515880) tracks the communication equipment index (931160), focusing on companies involved in communication network infrastructure and terminal equipment production, reflecting the overall performance and development trends of the communication equipment industry [1]